40 CFR Appendix A to Part 439 - Appendix A to Part 439—Tables
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Appendix A to Part 439—Tables
Table 1—Surrogate Parameters for Direct Dischargers
[Utilizing biological treatment technology]
| Regulated parameters | Treatability class |
|---|---|
| Amyl alcohol | Alcohols. |
| Ethanol 1 | |
| Isopropanol 1 | |
| Methanol 1 | |
| Phenol | |
| Isobutyraldehyde 1 | Aldehydes. |
| n-Heptane 1 | Alkanes. |
| n-Hexane 1 | |
| Diethylamine 1 | Amines. |
| Triethylamine | |
| Benzene | Aromatics. |
| Toluene 1 | |
| Xylenes 1 | |
| Chlorobenzene | |
| o-Dichlorobenzene | |
| Chloroform 1 | Chlorinated Alkanes. |
| Methylene chloride 1 | |
| 1,2-Dichloroethane 1 | |
| Ethyl acetate 1 | Esters. |
| Isopropyl acetate | |
| n-Amyl acetate | |
| n-Butyl acetate | |
| Methyl formate | |
| Tetrahydrofuran 1 | Ethers. |
| Isopropyl ether | |
| Acetone 1 | Ketones. |
| 4-Methyl-2-pentanone (MIBK) | |
| Ammonia (aqueous) | Miscellaneous. 2 |
| Acetonitrile | |
| Methyl Cellosolve | |
| Dimethyl Sulfoxide |
1 These parameters may be used as a surrogate to represent other parameters in the same treatability class.
2 Surrogates have not been identified for the “Miscellaneous” treatability class.
Table 2—Surrogate Parameters for Indirect Dischargers (Utilizing Steam Stripping Treatment Technology)
| Regulated parameters | Treatability class |
|---|---|
| Benzene | |
| Toluene 1 | |
| Xylenes | |
| n-Heptane | High strippability. |
| Chloroform 1 | |
| Methylene chloride 1 | |
| Chlorobenzene | |
| Ammonia (aqueous) | |
| Diethyl amine | |
| Triethyl amine | |
| Acetone 1 | |
| 4-methyl-2-pentanone | |
| n-Amyl acetate | |
| n-Butyl acetate | |
| Ethyl acetate | Medium strippability. |
| Isopropyl acetate | |
| Methyl formate | |
| Isopropyl ether | |
| Tetrahydrofuran 1 | |
| 1,2-dichloroethane | |
| o-Dichlorobenzene |
1 These parameters may be used as a surrogate to represent other parameters in the same treatability class.